[Form 4] Minerals Technologies Inc Insider Trading Activity

Rhea-AI Filing Summary

Rocky Motwani, a director of Minerals Technologies Inc. (MTX), reported on Form 4 that on 09/05/2025 he was credited with 10.553 phantom stock units. Each phantom unit is the economic equivalent of one share of common stock and these units were accrued under the company Non-Funded Deferred Compensation and Unit Award Plan for Non-Employee Directors. The units carry a reported price of $0 and are to be settled in cash when the reporting person ends service as a director. After the accrual, the filing shows 6,161.164 shares beneficially owned by the reporting person (direct ownership). The Form 4 was signed on behalf of Rocky Motwani on 09/09/2025.

Positive

• Transparent disclosure of director compensation credit under the company deferred compensation plan
• Non-cash accrual (phantom units) so no immediate shareholder dilution
• Clear settlement terms: units are to be settled in cash upon termination of director service

Negative

• None.

Insights

Financial Analyst

TL;DR: Director received a small deferred-compensation credit of 10.553 phantom units; transaction is routine and non-cash.

The reported accrual of 10.553 phantom stock units at a $0 price reflects a non-cash director compensation event under the company's deferred compensation plan. Because the units are settled in cash upon termination, there is no immediate dilution to shareholders and no cash outlay recorded now. The position shown post-transaction is 6,161.164 beneficially owned shares (direct), indicating the director already held a material direct stake in the issuer. Overall this Form 4 documents a routine, compensatory accrual rather than an active market purchase or sale.

Corporate Governance Expert

TL;DR: This is a standard disclosure of deferred director compensation under the company plan; settlement is cash-based upon service termination.

The filing clearly states the phantom stock units were accrued under the Non-Funded Deferred Compensation and Unit Award Plan for Non-Employee Directors and will be settled in cash when the director leaves service. Such arrangements are common for non-employee directors to defer compensation. The Form 4 properly discloses the grant date (09/05/2025), the number of units (10.553), and the direct ownership level after the accrual. No governance red flags or unusual transaction codes are present in the filing text.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Motwani Rocky

(Last) (First) (Middle)

622 THIRD AVENUE

(Street)

NEW YORK NY 10017-6707

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
MINERALS TECHNOLOGIES INC [ MTX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
09/05/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
PHANTOM STOCK UNITS	(1)	09/05/2025		A		10.553		(2)	(2)	COMMON STOCK	10.553	$0	6,161.164	D

Explanation of Responses:

1. Each phantom stock unit is the economic equivalent of one share of Minerals Technologies Inc. Common Stock.

2. The phantom stock units were accrued under the Minerals Technologies Inc. Non-Funded Deferred Compensation and Unit Award Plan for Non-Employee Directors and are to be settled in cash upon the reporting person's termination of service as a director.

	TIMOTHY JORDAN FOR ROCKY MOTWANI	09/09/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did Rocky Motwani report on the Form 4 for MTX?

He reported the accrual of 10.553 phantom stock units on 09/05/2025 under the company Non-Funded Deferred Compensation and Unit Award Plan for Non-Employee Directors.

Are the phantom stock units equivalent to MTX common shares?

Yes. The filing states each phantom stock unit is the economic equivalent of one share of Minerals Technologies Inc. common stock.

Will these phantom units dilute MTX shareholders immediately?

No. The units are non-derivative phantom units accrued for director compensation and are to be settled in cash upon the reporting person termination of service, so there is no immediate share issuance disclosed.

How many shares did the reporting person beneficially own after the transaction?

The Form 4 shows 6,161.164 shares beneficially owned following the reported transaction (direct ownership).

What price was reported for the phantom units?

The reported price for the phantom stock units is shown as $0 in the filing.